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Acacia

Gas power plant in Western Cape, South Africa. Approximate location -33.8841, 18.5336.

GasWestern CapeSouth AfricaCO₂ reported

Acacia is a 171 MW gas power station in Western Cape, South Africa. It is operated by Eskom. Based on its capacity (estimated), it can supply roughly 192,594 homes (estimated). It ranks #30 of 122 South Africa power plants by installed capacity. Commissioned in 1976, it is around 50 years old — long-established. Its measured emissions of 75,749 t CO₂/yr (Climate TRACE) are equivalent to about 17,657 cars driven for a year. In context, gas supplies about 0.0% of South Africa's electricity; the national grid averages 699 gCO₂/kWh (17.8% low-carbon) (2025).

171MW installed capacity
192,594homes powered (est.)
75,749t CO₂ / yr (Climate TRACE)
1976commissioned (~50 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1000115.

75,749 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

17,657passenger cars driven for a year
9,879homes' yearly energy use
1,262,483tree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions reported to Climate TRACE.

Capacity vs largest gas plants in South Africa

Acacia: 171 MW171AcaciaPort Rex: 171 MW171Port Rex

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Eskom. All plants by this company →

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a hot-summer Mediterranean climate (Köppen Csa) — Southern Hemisphere, latitude 33.9°S — which shapes how much energy it can produce and how its output varies through the year.

17.4°Cannual mean temp
649heating degree-days (base 18°C)
413cooling degree-days (base 18°C)
65 melevation

Monthly mean temperature

J: 22 °CJF: 22 °CFM: 20 °CMA: 18 °CAM: 15 °CMJ: 13 °CJJ: 13 °CJA: 13 °CAS: 15 °CSO: 17 °CON: 19 °CND: 20 °CD22 °C

Heating degree-days here run 74% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 22/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

A gas turbine here also runs ~2% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

How it compares & nearby plants

The #1 largest gas power plant of 2 in South Africa by capacity.

South Africa has 2 gas power plants in this dataset, together about 342 MW of capacity.

Nearby power plants

Location

Coordinates -33.8841, 18.5336 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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